Datasheet

DT-3891F interface protocol
PC send connection command to the Meter
Fill with 0, 15 byte in total
PC send communication finishing command to the Meter
Fill with 0, 15 byte in total
Reading the LOGGER
Read the information package and data pages, length, sent by PC
Fill with 0, 15 byte in total
0Xf2 0XFF are the package head
From the 3
rd
byte to 15
th
byte are all 0
After Meter received, send the package Length at first (4 byte)
0XF2
HEAD
Info(length of info package)
length
Page
（
Page length
low byte）
Length low
Page
（
page length high
byte）
Length hi
The 7 byte is a information package, therefore, Infolength is 0x07( there are 7 byte in the information package)
0XF4
0xFF
0X00
0X00
0X00 ~~~~~~
0XF5
0xFF
0X00
0X00
0X00 ~~~~~~
0XF2
0xFF
0X00
0X00
0X00 ~~~~~~